Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
619999487Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19375146801757268706712270.72018-06-15 00:30:59
History
DateUserTypeResult
2025-03-17James HeinrichF
Factor: 1937514680175726870671 / TF: 70-71
2018-06-15Alex_soldierF
Factor: 1937514680175726870671 / TF: 70-71*
2016-09-24NipalNF
no factor from 2^67 to 2^70
2014-03-16sasakiNF
no factor from 2^65 to 2^67